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Added cpp ReverseModel (#3132)

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Florian Blasius 2023-07-24 11:32:45 +02:00 • committed by GitHub
parent 635ecbead6
commit 8ce2620aaa
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95
api/cpp/tests/models.cpp
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@ -399,3 +399,98 @@ SCENARIO("Sorted Model Change")
REQUIRE(sorted_model->row_data(2) == 2);
REQUIRE(sorted_model->row_data(3) == 3);
}
SCENARIO("Reverse Model Insert")
{
auto vec_model = std::make_shared<slint::VectorModel<int>>(std::vector<int> { 3, 4, 1, 2 });
auto reverse_model = std::make_shared<slint::ReverseModel<int>>(vec_model);
auto observer = std::make_shared<ModelObserver>();
reverse_model->attach_peer(observer);
REQUIRE(reverse_model->row_count() == 4);
REQUIRE(reverse_model->row_data(0) == 2);
REQUIRE(reverse_model->row_data(1) == 1);
REQUIRE(reverse_model->row_data(2) == 4);
REQUIRE(reverse_model->row_data(3) == 3);
vec_model->insert(0, 10);
REQUIRE(observer->added_rows.size() == 1);
REQUIRE(observer->added_rows[0] == ModelObserver::Range { 4, 1 });
REQUIRE(observer->changed_rows.empty());
REQUIRE(observer->removed_rows.empty());
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(reverse_model->row_count() == 5);
REQUIRE(reverse_model->row_data(0) == 2);
REQUIRE(reverse_model->row_data(1) == 1);
REQUIRE(reverse_model->row_data(2) == 4);
REQUIRE(reverse_model->row_data(3) == 3);
REQUIRE(reverse_model->row_data(4) == 10);
}
SCENARIO("Reverse Model Remove")
{
auto vec_model = std::make_shared<slint::VectorModel<int>>(std::vector<int> { 3, 4, 1, 2 });
auto reverse_model = std::make_shared<slint::ReverseModel<int>>(vec_model);
auto observer = std::make_shared<ModelObserver>();
reverse_model->attach_peer(observer);
REQUIRE(reverse_model->row_count() == 4);
REQUIRE(reverse_model->row_data(0) == 2);
REQUIRE(reverse_model->row_data(1) == 1);
REQUIRE(reverse_model->row_data(2) == 4);
REQUIRE(reverse_model->row_data(3) == 3);
/// Remove the entry with the value 4
vec_model->erase(1);
REQUIRE(observer->added_rows.empty());
REQUIRE(observer->changed_rows.empty());
REQUIRE(observer->removed_rows.size() == 1);
REQUIRE(observer->removed_rows[0] == ModelObserver::Range { 2, 1 });
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(reverse_model->row_count() == 3);
REQUIRE(reverse_model->row_data(0) == 2);
REQUIRE(reverse_model->row_data(1) == 1);
REQUIRE(reverse_model->row_data(2) == 3);
}
SCENARIO("Reverse Model Change")
{
auto vec_model = std::make_shared<slint::VectorModel<int>>(std::vector<int> { 3, 4, 1, 2 });
auto reverse_model = std::make_shared<slint::ReverseModel<int>>(vec_model);
auto observer = std::make_shared<ModelObserver>();
reverse_model->attach_peer(observer);
REQUIRE(reverse_model->row_count() == 4);
REQUIRE(reverse_model->row_data(0) == 2);
REQUIRE(reverse_model->row_data(1) == 1);
REQUIRE(reverse_model->row_data(2) == 4);
REQUIRE(reverse_model->row_data(3) == 3);
/// Change the entry with the value 4 to 10 -> maintain order
vec_model->set_row_data(1, 10);
REQUIRE(observer->added_rows.empty());
REQUIRE(observer->changed_rows.size() == 1);
REQUIRE(observer->changed_rows[0] == 2);
REQUIRE(observer->removed_rows.empty());
REQUIRE(!observer->model_reset);
observer->clear();
REQUIRE(reverse_model->row_count() == 4);
REQUIRE(reverse_model->row_data(0) == 2);
REQUIRE(reverse_model->row_data(1) == 1);
REQUIRE(reverse_model->row_data(2) == 10);
REQUIRE(reverse_model->row_data(3) == 3);
}